Composite bin for powder or particle material

ABSTRACT

A sealed composite bin for accommodating and delivering powder or particle material has multiple main bin units ( 11 - 13 ) arranged vertically and connected with each other, each including an arched main top part ( 111 ), a cylindrical main side wall ( 112 ) and a conical main bottom part ( 113 ). The radius of each main side wall is approximately the same, the in-line arrangement of the multiple main bin units ( 11 - 13 ) make the distance between the axes of the adjacent main bin units less than the sum of the radii of the two corresponding main side walls, and the multiple main bin units are communicated with each other. A supplementary bin unit ( 21 ) is provided between the adjacent main bin units, and the supplementary bin unit ( 21 ) includes a supplementary top part ( 211 ) connected to the top parts of the adjacent main bin units and cylindrical supplementary side walls ( 212,212′ ) connected to the side walls of the adjacent main bin units. The structure of the composite bin of the invention can obtain more inner volume by using the same amount of material for the exterior surface, and hence improves the using efficiency of the material.

TECHNICAL FIELD

The invention relates to an apparatus for accommodating and deliveringpowder or particle material, and particularly to a composite bin usedfor accommodating and delivering powder or particle material andinstalled on a transporting vehicle.

BACKGROUND

A conventional bin used for powder or particle material and installed ontransporting vehicle is in a form of horizontally arranged cylindricaltank or horizontally arranged double-conical-tank, as shown in FIGS. 1and 2. FIG. 1 shows a conventional bin in the form of a horizontallyarranged cylindrical tank, including cylindrical outer housing part andmultiple inner chambers disposed inside said housing part andcommunicated with each other to accommodate the material therein. Adischarging port is disposed in the bottom part of each inner chamber,and the inner chamber further includes inclined sliding plates and aconical bottom part so as to let the material move to the dischargingport. Thus, there are lots of cavities, which can not be used foraccommodating the material, formed between the outer housing part andthe sliding plates as well as the conical bottom part of the innerchamber. Similarly, FIG. 2 shows a conventional bin in the form of ahorizontally arranged double-conical-tank, including an outer housingpart in a double-conical shape and an inner chamber disposed inside thehousing part and used for accommodating the material. The inner chamberincludes inclined sliding plates, for directing the material to thedischarging port in the bottom part. Likewise, there are lots ofcavities, which can not be used for accommodating the material, formedbetween the outer housing part and the sliding plates of the innerchamber. Due to the presence of such cavities, the material would leakto said cavities once cracks appear in walls of the inner chamber.Consequently, the inner chamber has to be emptied and the leakedmaterial has to be removed during maintenance, and the cracks could bewelded only from the inner side of the inner chamber, such that thequality of welding can not be guaranteed and the cost of maintenance ishigh.

In view of this, the applicant ever developed a new composite bincomprising multiple vertical bin units, each including a cylindricalside wall, an arched top part with a charging port and a conical bottompart with a discharging port. The cylindrical side walls of the adjacentbin units intersect with each other, and the bin units are internallycommunicated. Such a composite bin does not include outer housing partas the conventional composite bin, and thus if cracks appeared in thebin unit, the cracks could be welded from either the inside or outside,so that the quality of welding can be guaranteed and the maintenancebecomes relatively simple. The disclosure of such a composite bin can befound in the applicant's former Chinese patents for design,200330103801.3, 200530014868.9, 200530014180.0, 200630000218.3, and200630000219.8 and a Chinese patent for utility model 2003201220330.

FIG. 3 shows a perspective view of the prior composite bin with no outerhousing part that had been developed by the applicant. FIG. 4 shows thecross section view of the composite bin of FIG. 3 taken along thehorizontal plane. None of the side walls of the bin units has a completecylindrical shape due to the intersection between the adjacent bin unitsin the composite bin shown in said figures. The intersection portion ofthe adjacent bin units forms a concave part in the cross section shownin the figures. During manufacturing, extra materials for forming thesurface of the bin should be needed to form this concave part, whichcould provide no contribution to the inner volume of the composite bin,and this in turn causes a waste of the surface material. Considering theefficiency of the surface material for forming the inner volume, it isnecessary to improve the structure of this part.

SUMMARY OF THE INVENTION

The object of the invention is to solve the above problems of the priorart, so as to achieve an optimized design associated with the consumedmaterial for the surface of the composite bin and its inneraccommodating volume.

To achieve the above object, the invention provides a sealed compositebin for accommodating and delivering powder or particle material,comprising: multiple main bin units arranged vertically and connectedwith each other, each of which includes an arched main top part, acylindrical main side wall and a conical main bottom part, wherein eachof the main side walls has approximately the same radius, and themultiple main bin units are arranged in a line with the distance betweenthe axes of the adjacent main bin units being less than the sum of theradii of the two corresponding main side walls, and the multiple mainbin units are communicated with each other; wherein the composite binfurther includes supplementary bin units provided between the adjacentmain bin units, and each of the supplementary bin units includes asupplementary top part which is connected to the top parts of theadjacent main bin units and cylindrical supplementary side walls whichare connected to the cylindrical side walls of the adjacent main binunits.

The radius of the supplementary side walls of the supplementary binunits is equal to or smaller than that of the adjacent main side walls.

In the case that the main side walls have the same height, the heightsof the supplementary side walls can be equal to that of the main sidewalls, and the supplementary bin units include horizontally arrangedsupplementary bottom parts, which are connected to the adjacent main binunits in the plane where the main side walls and the main bottom partsof the adjacent main bin units intersect with each other. Or, in thecase that the main side walls have the same height, the heights of thesupplementary side walls extending from the top downward are less thanthe height of adjacent main side walls, and the supplementary bottomparts of the supplementary bin units gradually extend from thecylindrical supplementary side walls to the plane where the main sidewalls and the main bottom parts of the adjacent main bin units intersectwith each other, and the supplementary bottom parts are connected to theadjacent main bin units.

In the case the main side walls have different heights, the heights ofthe supplementary side walls are equal to that of the one of theadjacent main side walls that has the smaller height, and thesupplementary side walls have supplementary bottom parts being arrangedhorizontally and being connected to the adjacent main bin units in theplane where the main side wall and the main bottom part of the adjacentmain bin unit having the smaller height intersect with each other. Or,the heights of the supplementary side walls extending from the topdownward are less than the height of the one of the adjacent main sidewalls that has the smaller height, and the supplementary bottom part ofthe supplementary bin units gradually extend from the cylindricalsupplementary side walls to the plane where the main side wall and themain bottom part of the adjacent main bin unit having the smaller heightintersect with each other, and the supplementary bottom parts areconnected to the adjacent main bin units.

In the case that the bottom parts of the supplementary bin units are nothorizontally arranged, the inclination angle of the supplementary bottomparts of the supplementary bin units relative to the axis of thecylindrical shape of the supplementary bin unit is preferably less thanthe inclination angle of the generatrix of the conical shape of the mainbottom part relative to the axis of the cylindrical shape of the mainbin unit.

It is also feasible that the supplementary bin units of the invention donot include the supplementary bottom parts, and in the case that themain side walls of the main bin units have the same height, thesupplementary side walls extend from the top downward to directlyintersect with the adjacent main bottom parts. While in the case thatthe main side walls have different heights, the supplementary side walldirectly intersects with the main bottom part of the one of the adjacentmain bin units the adjacent main side wall of which has the smallerheight.

In one preferable embodiment, covering boards, extending downwardly fromthe outer surface of the cylindrical side walls with the same contour asthe cylindrical side walls are provided outside the supplementary bottomparts, so as to cover from the outside and achieve an estheticappearance.

In another preferable embodiment, inside the composite bin, a firstreinforcing structure is provided between the opposite side walls of therespective supplementary bin unit. Each of the first reinforcingstructures includes one first intermediate reinforcing bar and four sidewall reinforcing bars, wherein, each of the four side wall reinforcingbars is connected, at one end, with a connecting seam of thesupplementary side wall and one adjacent main side wall, and, at theother end, with both the intermediate reinforcing bar and the other sidewall reinforcing bar which is connected to the connecting seam of saidsupplementary side wall and the other adjacent main side wall.

Inside the composite bin, a second reinforcing structure can be furtherprovided between the connecting seams of the supplementary top part ofeach supplementary bin unit and the corresponding adjacent main topparts. Each of the second reinforcing structures includes one secondintermediate reinforcing bar and two top part reinforcing bars, whereineach of the two top part reinforcing bars is connected, at one end, withthe connecting seam between the supplementary top part and thecorresponding adjacent main top part, and, at the other end, with theintermediate reinforcing bar.

The first intermediate reinforcing bar and the second intermediatereinforcing bar are connected.

In another preferable embodiment, the first reinforcing structurefurther includes a first cross reinforcing bar which is connected withthe two connecting seams where the same supplementary side wallintersects with the adjacent main side walls, and the second reinforcingstructure further includes a second cross reinforcing bar which isconnected with the two connecting seams where the same supplementary toppart intersects with the adjacent main top parts.

The first cross reinforcing bar and the two side wall reinforcing barsat the same corresponding side can constitute an isosceles triangle withsaid first cross reinforcing bar lying on the bottom line of theisosceles triangle. The second cross reinforcing bar and the two toppart reinforcing bars corresponding to the same top part can constitutean isosceles triangle with said second cross reinforcing bar lying onthe bottom line of the isosceles triangle.

Inside the composite bin, a third reinforcing structure can be furtherprovided between the connecting seam of the supplementary top part ofthe respective supplementary bin unit and the main top part of oneadjacent main unit and the connecting seams of the supplementary sidewalls of the supplementary bin unit and the corresponding main sidewalls of the same adjacent main unit.

By adopting the structure of the composite bin of the invention, alarger inner accommodating volume can be obtained by using the sameamount of the consumed material for the outer surface of the compositebin, and the efficiency of the material is thus increased.

DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partially sectioned perspective view of the conventionalhorizontally arranged cylindrical-tank bin;

FIG. 2 is a partially sectioned perspective view of the conventionalhorizontally arranged double-conical-tank bin;

FIG. 3 is a schematic perspective view of the prior composite bin withno outer housing part ever developed by the applicant;

FIG. 4 is a cross section view of the composite bin of FIG. 3 takenalong the horizontal plane;

FIG. 5 is a schematic perspective view of the first embodiment of thecomposite bin according to the present invention;

FIG. 6 is a cross section view of the composite bin of FIG. 5 takenalong the horizontal plane;

FIG. 7 is a partially sectioned perspective view of the first embodimentof FIG. 5 taken along the vertical plane;

FIG. 8 is a schematic partially sectioned perspective view of the secondembodiment according to the present invention;

FIG. 9 is a schematic partially sectioned perspective view of the thirdembodiment according to the present invention;

FIG. 10 is a schematic partially sectioned plane view the fourthembodiment according to the present invention;

FIG. 11 is a schematic partially sectioned perspective view of the fifthembodiment according to the present invention;

FIG. 12 is a schematic partially sectioned perspective view of the sixthembodiment according to the present invention;

FIG. 13 is a schematic partially sectioned perspective view of theseventh embodiment according to the present invention.

DESCRIPTION OF THE EMBODIMENTS

FIG. 5 is a schematic perspective view of the first embodiment of thecomposite bin according to the invention. FIG. 6 is a cross section viewof the composite bin of FIG. 5 taken along the horizontal plane. Asshown in the figures, the composite bin of the invention includesmultiple main bin units vertically formed and arranged in a line,including terminal main bin units 11, 13 and intermediate main bin units12. The difference between the terminal main bin unit and theintermediate main bin unit only lies in that the terminal main bin unitis connected to another main bin unit at only one side, while theintermediate main bin unit is connected to other main bin units at bothsides. Although five main bin units are shown in the figures, thoseskilled in the art could understand that it is just an explanatoryexample and the actual number of the main bin units should not belimited to 5 but can be set otherwise depending on the specificrequirement to meet.

The main bin units will be described by taking the structure of the mainbin unit 11 as an example. The main bin unit 11 includes an arched maintop part 111, a cylindrical side wall 112 and a conical main bottom part113. The main top part 111 is provided with a charging port (not shown)for charging the material. The conical main bottom part includes adischarging part 114 for assembling a discharging device such asdischarging port. The structure of the main bin units of the compositebin are similar to each other, except that, since each of the terminalmain bin units at both ends of the composite bin intersects with asingle adjacent bin, the main side wall thereof is an integral part,while the side wall of each intermediate bin units is divided into twoopposite parts. The main side wall of each main bin units has the sameradius. The distance between the axes of the adjacent main bin units isless than the diameter of the main bin unit, in other words, the virtualcylinders along which the main side walls of the main bin units areformed intersect with each other. The main bottom parts of the adjacentmain bin units intersect with each other and connecting seams are formedat the intersecting part.

Supplementary bin units 21 are formed between the adjacent bin units,and each of said supplementary bin units includes a supplementary toppart 211, opposing cylindrical supplementary side walls 212,212′ andsupplementary bottom parts 213,213′, which intersect with the adjacentmain bin units. The supplementary top part 211 has the same curvature asthat of the main top part 111 of the main bin unit 11. The radius ofcurvature of the cylindrical supplementary side walls 212, 212′ isdesigned so that, on one hand, the supplementary bin unit could provideas much accommodating volume as possible, and on the other hand, theassociated arc height shall be sufficient to provide enough bendingstrength for said cylindrical supplementary side walls. Those skilled inthe art, with giving full consideration of the above-mentioned twoaspects, could choose an appropriate value of the radius of curvaturedepending on the specific application. To sum up, the radius of thesupplementary side walls 212, 212′ should be smaller than the radius ofthe main side wall of the main side bin unit.

In the embodiment shown in FIG. 5, the heights of the main side wallsare the same, while the height of each supplementary side walls 212,212′ is smaller than that of the main side wall 112 of the main binunit, with each supplementary side walls extending from the top downwardso as to cover only a part of the height of said main side wall, such asa half. The supplementary bottom parts 213, 213′ gradually extend fromthe lower edges of the supplementary side walls 212, 212′ to the planeof the connecting seams where the main side walls 112 and the mainbottom parts of the main bin unit intersect with each other, and areconnected to the adjacent main bin units, so as to make it possible todirect the downward movement of the material accommodated in thesupplementary bin units and finally discharge the material via thebottom parts of the adjacent main bin units. In the fourth embodimentshown in FIG. 10 where the heights of the main side walls are different,the heights of the supplementary side walls are even smaller than thatof said adjacent main side wall that has the smaller height. And, thesupplementary bottom parts gradually extend from the lower edges of thesupplementary main side walls to the plane of the connecting seams wherethe main side walls and the main bottom parts of said adjacent main binunit that has the smaller height intersect with each other, and areconnected to the adjacent main bin units.

In the above case, in order to direct the material accommodated by thesupplementary bin units 21 to the main bottom parts easily and smoothly,the inclination angle of the supplementary bottom parts 213, 213′relative to the axis of the cylindrical supplementary side walls issmaller than the inclination angle of the generatrix of the conicalshape of the main bottom part 113 relative to the axis of thecylindrical main side wall.

Likewise, in the above case as shown in the second embodiment in FIG. 8,covering board 215, 215′, extending downwardly from the outer surface ofthe cylindrical side walls 212, 212, can be provided outside thesupplementary bottom parts 213, 213′, to cover the supplementary bottomparts from the outside and thus achieve an esthetic appearance of thecomposite bin.

Another preferable embodiment is the composite bin according to thethird embodiment shown in FIG. 9, wherein, the supplementary bottomparts 213, 213′ are horizontally arranged and connected to the adjacentmain bin units in the plane of the connecting seams where the main sidewalls 112, 121′ and the main bottom parts 113 of the main bin unitintersect with each other. In this case, the height of the supplementaryside walls 212, 212′ is equal to the height of the main side walls 112,121′ of the main bin unit. Although each main side wall has the sameheight as shown in FIG. 9, it is also feasible for each main side wallto have different height, and meanwhile, the height of the supplementaryside walls can be equal to the height of the adjacent main wall that hasthe smaller height, and the supplementary bottom parts is in turnconnected to the adjacent main bin units in the plane of the connectingseams where said main side walls and the corresponding main bottomparts.

FIGS. 11 and 12 show the embodiments in which the supplementary binunits do not include supplementary bottom parts. In the fifth embodimentshown in FIG. 11 with the main side walls of the main bin units havingthe same heights, the supplementary side walls extend from the topdownward to directly intersect with the adjacent main bottom parts. Inthe sixth embodiment shown in FIG. 12 with the main side walls havingdifferent heights, the lower parts of the supplementary side wallsdirectly intersect with the main bottom part of the adjacent main binunit the main side wall of which has the smaller height.

Since generally certain pressure must be maintained inside this kind ofcomposite bin, various reinforcing structures to guarantee the strengthof the bin units can be provided for example at the connecting seams. Asshown in FIG. 7, for example, first reinforcing structures are providedbetween the opposite side walls of the supplementary bin units, andsecond reinforcing structures are provided between the connecting seamswhere the supplementary top parts intersect with corresponding adjacentmain bottom parts.

The first reinforcing structure includes one first intermediatereinforcing bar 411 and four side wall reinforcing bars, and only a halfof the first reinforcing structure is schematically shown in the figurefor the purpose of clarity. And in the structure as shown, side wallreinforcing bars 422 and 423 are, at one end, connected to therespective connecting seams where the supplementary side wall 212intersects with the adjacent main bin units 12 and 11, and, at the otherend, connected to each other and then all together to the firstintermediate reinforcing bar 411. The first intermediate reinforcing bar411 extends horizontally and is connected to the other two side wallreinforcing bars provided at the connecting seams of the opposite sidewall 212′ in the same manner as mentioned above. The first reinforcingstructure configured as such can improve the transverse strength of thecomposite bin. In order to further improve the strength, a first crossreinforcing bar can be provided between the connecting portionsrespectively formed between the side wall reinforcing bars on the sameside and the corresponding connecting seams. In a case shown in FIG. 7,the side wall reinforcing bars 422 and 423 and the first crossreinforcing bar 424 constitute an isosceles triangle, with the firstcross reinforcing bar being its bottom line.

The second reinforcing structure includes one second intermediatereinforcing bar and two top reinforcing bars 512 and 513, wherein thetwo reinforcing top bars 512 and 513 are, at one end, connected to therespective connecting seams where the supplementary top part 211intersect with the adjacent main top part 121 and 111, and, at the otherend, connected to each other and then all together to the secondintermediate reinforcing bar 511. The second intermediate reinforcingbar 511 can be connected with the first intermediate reinforcing bar411. The second reinforcing structure configured as such can improve thelongitudinal strength of the composite bin. In order to further improvethe strength, a second cross reinforcing bar can be provided between theconnecting portions respectively formed between the top reinforcing barsand the connecting seams. As shown in FIG. 7, the top reinforcing bars512 and 513 and the second cross reinforcing bar 524 constitute anisosceles triangle with the second cross reinforcing bar 524 being itsbottom line.

In the seventh embodiment of the invention as shown in FIG. 13, a thirdreinforcing structure can be further provided between the supplementarytop part 211 and supplementary side walls 212, 212′ of the supplementarybin unit. For example, third reinforcing bars 611, 612 are providedbetween the connecting seam of the supplementary top part 211 and themain top part 111 of the adjacent main bin units 11 and either of theconnecting seams of the respective supplementary side walls 212, 212′and the main side wall 112 of the adjacent main bin units 11. The firstreinforcing structure in this embodiment could be configured as thereinforcing bar connecting the respective connecting seams formedbetween either of the opposite supplementary side walls 212, 212′ andthe main side wall 112.

The above reinforcing bars can be made of steel plate or other materialsthat can provide high strength.

Although the main side walls of the main bin units have the same radiusin the above embodiments, those skilled in the art should understandthat, the radius of the main side walls of the main bin units can beslightly different from one another, and meanwhile the distance betweenthe axes of the adjacent main bin units corresponds to the sum of theradii of the corresponding main side walls.

The invention could provide additional accommodating volume by formingsupplementary bin units between the cylindrical main bin units byutilizing the material that used to form the concave parts in the priorart shown in FIGS. 3 and 4, such that an optimized result associatedwith the consumed material for the surface of the composite bin and itsinner accommodating volume can be achieved.

Although the invention is described with reference to the preferableembodiments, the invention is not limited to those specific embodiments,and those skilled in the art can make various changes and modificationsto the invention without departing from the spirit and concept of theinvention, which changes and modifications should all be included in thescope of the invention.

1. A sealed composite bin for accommodating and delivering powder orparticle material, comprising: multiple main bin units arrangedvertically and connected with each other, each of which includes anarched main top part, a cylindrical main side wall and a conical mainbottom part, wherein each of the main side walls has approximately thesame radius, and the multiple main bin units are arranged in a line withthe distance between the axes of the adjacent main bin units being lessthan the sum of the radii of the two corresponding main side walls, andthe multiple main bin units are communicated with each other; whereinsaid composite bin further includes supplementary bin units providedbetween the adjacent main bin units, and each of the supplementary binunits includes a supplementary top part which is connected to the topparts of the adjacent main bin units and cylindrical supplementary sidewalls which are connected to the cylindrical side walls of the adjacentmain bin units.
 2. The composite bin for powder or particle material ofclaim 1, wherein the radius of the supplementary side walls of thesupplementary bin units is equal to or smaller than that of the adjacentmain side walls.
 3. The composite bin for powder or particle material ofclaim 1, wherein, the main side walls have the same height; and theheights of the supplementary side walls are equal to that of the mainside walls; wherein the supplementary bin units include horizontallyarranged supplementary bottom parts, which are connected to the adjacentmain bin units in the plane where the main side walls and the mainbottom parts of the adjacent main bin units intersect with each other.4. The composite bin for powder or particle material of claim 1,wherein, the main side walls have the same height; the heights of thesupplementary side walls extending from the top downward are less thanthe height of adjacent main side walls; the supplementary bottom partsof the supplementary bin units gradually extend from the cylindricalsupplementary side walls to the plane where the main side walls and themain bottom parts of the adjacent main bin units intersect with eachother, and the supplementary bottom parts are connected to the adjacentmain bin units.
 5. The composite bin for powder or particle material ofclaim 1, wherein, the main side walls have the same height, thesupplementary side walls extend from the top downward to directlyintersect with the adjacent main bottom parts.
 6. The composite bin forpowder or particle material of claim 1, wherein the main side walls havedifferent heights; the heights of the supplementary side walls are equalto that of the one of the adjacent main side walls that has the smallerheight, wherein the supplementary side walls have supplementary bottomparts being arranged horizontally and being connected to the adjacentmain bin units in the plane where the main side wall and the main bottompart of the adjacent main bin unit having the smaller height intersectwith each other.
 7. The composite bin for powder or particle material ofclaim 1, wherein, the main side walls have different heights, theheights of the supplementary side walls extending from the top downwardare less than the height of the one of the adjacent main side walls thathas the smaller height, wherein the supplementary bottom part of thesupplementary bin units gradually extend from the cylindricalsupplementary side walls to the plane where the main side wall and themain bottom part of the adjacent main bin unit having the smaller heightintersect with each other, and the supplementary bottom parts areconnected to the adjacent main bin units.
 8. The composite bin forpowder or particle material of claim 4, wherein the inclination angle ofthe supplementary bottom parts of the supplementary bin units relativeto the axis of the cylindrical shape of the supplementary bin unit isless than the inclination angle of the generatrix of the conical shapeof the main bottom part relative to the axis of the cylindrical shape ofthe main bin unit.
 9. The composite bin for powder or particle materialof claim 1, wherein the main side walls have different heights, and thelower part of the supplementary side wall directly intersects with themain bottom part of the one of the adjacent main bin units the adjacentmain side wall of which has the smaller height.
 10. The composite binfor powder or particle material of claim 4, wherein, covering boards,extending downwardly from the outer surface of the cylindrical sidewalls in the same contour as the cylindrical side walls, are providedoutside the supplementary bottom parts.
 11. The composite bin for powderor particle material of claim 1, wherein, inside the composite bin, afirst reinforcing structure is provided between the opposite side wallsof the respective supplementary bin unit.
 12. The composite bin forpowder or particle material of claim 11, wherein, each of the firstreinforcing structures includes one first intermediate reinforcing barand four side wall reinforcing bars, wherein each of the four side wallreinforcing bars is connected, at one end, with the connecting seam ofthe supplementary side wall and one adjacent main side wall, and, at theother end, with both the first intermediate reinforcing bar and theother side wall reinforcing bar which is connected to the connectingseam of said supplementary side wall and the other adjacent main sidewall.
 13. The composite bin for powder or particle material of claim 1,wherein, inside the composite bin, a second reinforcing structure isprovided between the connecting seams where the supplementary top partof each supplementary bin unit intersects with the correspondingadjacent main top parts.
 14. The composite bin for powder or particlematerial of claim 13, wherein, each of the second reinforcing structuresincludes one second intermediate reinforcing bar and two top partreinforcing bars, wherein each of the two top part reinforcing bars isconnected, at one end, with the connecting seam between thesupplementary top part and the corresponding adjacent main top part, andat the other end with the second intermediate reinforcing bar.
 15. Thecomposite bin for powder or particle material of claim 21, wherein, thefirst intermediate reinforcing bar and the second intermediatereinforcing bar are connected.
 16. The composite bin for powder orparticle material of claim 12, wherein, the first reinforcing structurefurther includes a first cross reinforcing bar which connects the twoconnecting seams where the same supplementary side wall intersects withthe adjacent main side walls.
 17. The composite bin for powder orparticle material of claim 16, wherein, the first cross reinforcing barand the two side wall reinforcing bars at the same corresponding sideconstitute an isosceles triangle with said first cross reinforcing barlying on the bottom line of the isosceles triangle.
 18. The compositebin for powder or particle material of claim 22, wherein, the secondcross reinforcing bar and the two top part reinforcing barscorresponding to the same top part constitute an isosceles triangle withsaid second cross reinforcing bar lying on the bottom line of theisosceles triangle.
 19. The composite bin for powder or particlematerial of claim 1, wherein, inside the composite bin, a thirdreinforcing structure is provided between the connecting seam of thesupplementary top part of the respective supplementary bin unit and themain top part of one adjacent main unit and the connecting seams of thesupplementary side walls of the supplementary bin unit and thecorresponding main side walls of the same adjacent main unit.
 20. Thecomposite bin for powder or particle material of claim 7, wherein theinclination angle of the supplementary bottom parts of the supplementarybin units relative to the axis of the cylindrical shape of thesupplementary bin unit is less than the inclination angle of thegeneratrix of the conical shape of the main bottom part relative to theaxis of the cylindrical shape of the main bin unit.
 21. The compositebin for powder or particle material of claim 13, wherein, inside thecomposite bin, a second reinforcing structure is provided between theconnecting seams where the supplementary top part of each supplementarybin unit intersects with the corresponding adjacent main top parts; eachof the second reinforcing structures includes one second intermediatereinforcing bar and two top part reinforcing bars, wherein each of thetwo top part reinforcing bars is connected, at one end, with theconnecting seam between the supplementary top part and the correspondingadjacent main top part, and at the other end with the secondintermediate reinforcing bar.
 22. The composite bin for powder orparticle material of claim 15, wherein, the second reinforcing structurefurther includes a second cross reinforcing bar which connects the twoconnecting scams where the same supplementary top part intersects withthe adjacent main top parts.